<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<style>
#div1 .active {background:yellow;}
#div1 div {width:200px; height:200px; background:#CCC; border:1px solid #999; display:none;}
</style>
<script>
window.onload=function ()
{
	var oDiv=document.getElementById('div1');
	var aBtn=oDiv.getElementsByTagName('input');
	var aDiv=oDiv.getElementsByTagName('div');
	
	for(var i=0;i<aBtn.length;i++)
	{
		aBtn[i].index=i;
		aBtn[i].onclick=function ()
		{
			for(var i=0;i<aBtn.length;i++)
			{
				aBtn[i].className='';
				aDiv[i].style.display='none';
			}
			this.className='active';
			//alert(this.index);
			aDiv[this.index].style.display='block';
		};
	}
};
</script>
</head>

<body>
<div id="div1">
	<input class="active" type="button" value="教育" />
	<input type="button" value="培训" />
	<input type="button" value="招生" />
	<input type="button" value="出国" />
    <div style="display:block;">1111</div>
    <div>2222</div>
    <div>333</div>
    <div>4444</div>
</div>
</body>
</html>
